SQL++ parser:
1. refactored asterix-aql to become asterix-lang-common and asterix-lang-aql, where the former is the common part for different languages;
2. added asterix-lang-sqlpp on top of asterix-lang-common;
3. ported parser tests, optimizer tests and runtime tests in asterix-app to their sql++ version, and added parser tests for all the queries.

Change-Id: Ie5af4e3b692ca017ec047a1ba3b404a51beb3a2e
Reviewed-on: https://asterix-gerrit.ics.uci.edu/466
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>
diff --git a/asterix-app/src/test/resources/optimizerts/queries_sqlpp/query-issue810.sqlpp b/asterix-app/src/test/resources/optimizerts/queries_sqlpp/query-issue810.sqlpp
new file mode 100644
index 0000000..da41e12
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries_sqlpp/query-issue810.sqlpp
@@ -0,0 +1,70 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Description     : This test case is to verify the fix for issue810
+ * https://code.google.com/p/asterixdb/issues/detail?id=810
+ * Expected Result : Success
+ * Date            : 16th Nov. 2014
+ */
+
+drop  database tpch if exists;
+create  database tpch;
+
+use tpch;
+
+
+create type tpch.LineItemType as
+ closed {
+  l_orderkey : int32,
+  l_partkey : int32,
+  l_suppkey : int32,
+  l_linenumber : int32,
+  l_quantity : double,
+  l_extendedprice : double,
+  l_discount : double,
+  l_tax : double,
+  l_returnflag : string,
+  l_linestatus : string,
+  l_shipdate : string,
+  l_commitdate : string,
+  l_receiptdate : string,
+  l_shipinstruct : string,
+  l_shipmode : string,
+  l_comment : string
+}
+
+create  table LineItem(LineItemType) primary key l_orderkey,l_linenumber;
+
+select element {'l_returnflag':l_returnflag,'l_linestatus':l_linestatus,'count_cheaps':tpch.count(cheap),'count_expensives':tpch.count(expensive)}
+from  LineItem as l
+where (l.l_shipdate <= '1998-09-02')
+/* +hash */
+group by l.l_returnflag as l_returnflag,l.l_linestatus as l_linestatus
+with  cheap as (
+      select element m
+      from  l as m
+      where (m.l_discount > 0.05)
+  ),
+      expensive as (
+      select element a
+      from  l as a
+      where (a.l_discount <= 0.05)
+  )
+order by l_returnflag,l_linestatus
+;